California Code, Health and Safety Code - HSC § 25214.17

(b)(1) The department shall keep confidential any information identified by the manufacturer or supplier, pursuant to paragraph (2), as a trade secret, as defined in Section 25173, in accordance with departmental procedures that have been adopted pursuant to Section 25173, if the department determines that this information meets that definition of a trade secret.

(2) A manufacturer or supplier providing information to the department pursuant to this article shall, at the time of submission, identify all information that the manufacturer or supplier believes is a trade secret. The department shall make available to the public any information that is not a trade secret.